Leather-working machine



June 4, 1929. c. P. VOGEL ET AL LEATHER WORKING MACHINE Original Filed May 14, 1927 4 Sheets-Sheet IN VEN TOR'j 07 D7 MQQEWA ATTORNEYS June 4, 1929. c. PQVOGEL ET Al- LEATHER WORKING MACHINE 4 Sheets-Sheet 2 Original Filed May 14, 1927 INVENTORS O V a? ATTORNEYS June 4, 1929. I c. P. VOGEYL ET AL 1,715,

LEATHER WORKING- MACHINE Original Filed May 14, 1927 '4 sheets sheet 5 dNVENTOR' BY V 36 ATTORNEYJ' June 4, 1929. P.'VOGEL ETAL 1,715,582

LEATHER WORKING MACHINE Original Filed May 14, 1927 4 Sheets-Sheet 4 I 5, v a lr g M P a L" 47 47 iI 1: Mr

I i I! II M I I |i|| Ill 73 48 I 74 75 ATTORNEYJ' A v machinery. p The object of the Patented June 4, 1929.

. "UNIT I CHARLES E. voeEr; Ann ALBERT c; VOGEL, or mr'twaurrnnywrsooivsrn, AssieNoRs,

BY .MESNE ASSIGNMENTS, TO MACHINERY DEVELOPMENT COMPANY, OF MIL- WAUKEE, wrsoonsriv, A CORPORATION or WISCONSIN. Q

LEATHER-WORKING MACHINE.

Application filed May 14, 1927, Serial No. 191,413. Renewed May 4, 1928.

The invention relates to leather-working a machine for treating leather and more part icularly one for use in the setting out, I stretching and the securing of leather to a setting-out board in an efficient manner.

The invention further consists in t he several features hereinafter set forth and more particularly defined by claims at the conclusion hereof. r I I I In the drawings Fig; 1 is a side elevation view of a machine embodying the invention, parts being broken away; V 1.;

a Fig. 2 isoa plan view of the machine with the motor removed; V

Fig. 3 isfa vertical sectional view taken on V the line 33 of Fig. 1;

. to hold it in either one of two positions a,

Fig. 4 is a detail view showing a modified form of table-lifting mechanism;

Fig. 5 is a detail plan view of apart of the carriage, Y v

Fig. 6 is aside .view of a part of the carriagezand a sectional view through the clamp ing member;

Fig. 7 is an end view of a part of the carriage; 1 V

Fig. 8 is a sectional view through the carriage, taken on the broken line 88 of Fig. 6; i Fig. 9 is a detailview of the table-locking mechanism.

Referring to the drawings, the numeral 1O designates the frame of the machine, 11 astationary pedestal, 12 a pedestal or spindle 'slidably mounted in said pedestal 11 and having a table-supporting frame 13 secured thereto, 14 a table having a central spindle 15 journalled in said pedestal12and provided with'radially spaced sets of rollers 16 running on thetop surface of the frame 13L Thus the table is free to rotate onthe pedestal but pair of bevelled locking lugs 17 are mounted beneath thetable at diametrically opposite points, and a spring-pressed'detent 18 mount ed on the frame 13 is adapted to engage be-' tween either pair of said lugs to'lock the table against turning. As shown in Fig. 9, a spring 19 acts to move said detent 18 to a locking position and a lever 20 pivotally connected at one end to theframe 13 and intermediate its ends to said detent has its free end under the control of the operator to release said deitent so that th'e table may .be turned to re.-

invention is to provide verse the position, of the setting-out board 22 and the hide 23 thereon. 4 A clamping member 24 extends transverse- 1y across the machine andis urged downwardly by a plurality of springs 25, said member being limited in its movement in 'a suitable manner, as by means of a stop member 26 adjacent each end, extending through a verets 2s; ,The board 22 with the hide 23 therei on isiclamped between the member24c'and the table l t-by raising the table until the hide engages the member 24and moves it upwardly ticallydisposed slot 27- and secured to' brack,-,

on each side of the machine, one lever of each pair being pivotally mounted intermediate its ends upon a transversely disposed shaft 30, the other lever of eaohpair being pivotally mounted intermediate its ends upon atransversely disposed shaft3 1 ,the inner ends of each of the levers being connected to the frame 13 by a link 33 having an. adjustable turnbuckle'3 l, the inner ends ofthe levers of each pair being respectively pivotally connected to a link 35" which is pivotally connected to the intermediate portion of a lever 36 pivoted at 37fupon the frame of the machine. The spaced levers 36 ,are' connected togetherat their free ends by a tie-rod 36' and La transverselydisposed treadle member 3,8'so "that depression 'of'theitreadle, by the opera tor, causes the downward swinging movement I of the inner ends of'each pair of levers-29and an upward swingingmovement'of theouter ends of said levers which, ,throughthe' links 33, is transmitted into; an upward'movement of the frame-13, pedestal l2iand the table '14 thereon to producethe clamping engagement previously described; The weight offthe table, its support and the linkage is counterbalanced. by a counterbalance weight 39 mounted on the treadle. i a A t In Fig. 4 a modified form of tableqaising linkage is shown whereinthe' leverage is in creased by the interposition of, gearing between the links33 and the levers 29'. This gearing includes a segmental, gear 40 formed at the outer end of each of the levers 29,. which are otherwise similar to the'levers. 29 and similarly connected to the links 35 The gear portion 40 meshes withga gearilj which me he ith i fixed rack 42 and-carries a crank-arm-43 to which the lower end of the link 33 is connected so that when the operator simultaneouslystretching the same, a roller 44 is journalled onareciprocating carriage, said roller having spirally disposed blades 45 arranged in' herringbone relation and substantially' straight blades 46 radially disposed between the convolutions of said spiral blades.

- The'carriage includes end plates or frames 47 and'48 connected together by tie-rods 49 and having shafts :50 carrying rollers 51 runniiigin'a track 52 formed on the top of a longitudinally extending guide 53 The roller- 44 has a shaft portion 54 upon which a roller 55 is 'mounted, said roller sliding in the way formed by the guide 53 and a guide 56 and being j ournalled at its outer end in a split =loearin'g 57 on each end of the carriage; The frame 47 has amotor pad portion 58' formedthereon upon which an electric motor 59 is mounted, its drive shaft 60 carrying a gear 61 meshing with a gear 62 on a shaft 63 journalled at its end portions in the frames 47 and 48 and carrying gears 64 meshing with gears 65 on the roller shaft whereby said roller is rotated bysaid motorJ Thecarriage is reciprocatedback and forth to move the roller over the work by means of a power-driven shaft 66 having a drivepulley 67 mounted thereon and gears 68 meshing with gears'69 on a shaft 7 O carrying flywheels 71, each'provided with a crank-pin 72 operatively connected with one of the end frames of the carriage bya connecting-rod 7 3 1 and a pin 74 mounted v in a lug 75 on each of said-end frames. r

With the above construction for setting out and stretching the hide, thesetting-outboard,

with the hide laid thereonin a pliable condition, isplacedon thet'able in its lowered position and, according to one method, with adhesive betweenthe boardand the hide, the board and the hide being'so placed on the table that'when the table is raised to bring J the member 24' into clamping operation, said member will extend lengthwise across the entire hide and beyond the midback portion. The raising of the table to a clamped position is so timed by the operator as to. occur on the outward travel of the roller 44 so that with the hide clamped down the rotating roller is brought into pressing engagement with the hide throughout its entire length and while so related is moved from the midback portion 0f the hide out over the flanks by the "drive connection previously described,

with the result that the hide is secured to the setting-out board and simultaneously stretched in all directions along the engaging front of the roller bythe action of the straight and curved blades, andewhere adhesive used between the hide and the board this stretching action takes place progressively along a continuously shifting front instead of between said roller and the clamping member. Thus a full half of-the hide is operated upon by the roller and then the table 14 is lowered before ,said froller can travel back over the hide, the detent is releasedand the table turned through "a half circle and the I detentallowed to "snap into locking engagement'with' the set of lugs 17, then in position, to receive it, and the table is again raised to bring the hide andboard into clamping engagement with the member 24 at the opposite side of and beyond the midportion of the back anda-t a time i/vhenthe-roller 44 start- I 7 ing on its outward stroke so that pressure of the] roller upon the hide smooths and stretches out the remainder of the hide in the manner previously described in connection with the operation'on the firsthalf of the hide. The machine, of course, isnot tobe lim ited in its use to the specific method above described, as the hide may becshifted' to other positions relative to the roller, if desired. It is also preferred to impart a 'much faster speed of rotation to the roller compared to its motion of translation over the hide and this insures an efficient pressingaction of the roller as it travels slowly over the hide and permits the operator to more readily, time his operations of raising and'lowerin'g the table. The degree of pressure exertedjby the roller 7 44 is under the control'of the operator by the pressure he exerts on the treadle member 37' and the'setting-out board is preferably of fibreboard, somewhat yieldableorpliable' to prevent injury thereto by the roller and to accommodate for irregularities in thickness of thehide. V

.We'dejsir'e it to be understood that this invention is not to be limited to any particular former arrangement of parts except in so far as such limitations are specified 1n theclaims.

I lVhat we claim as our invention is In a machine of the characterdescribed, the combination of a supporting'table, a hideclamping means, acarriagefmounted above the table, a pressin'g-and stretching roller j ournalled in said carriage and extending across said table,drive means for said roller mounted on said carriage, means for reciprocating said carriage, and means under the control of the ioperatorfor moving said table relative to said roller. 125 '2. In a machine of thecharacter described,

the combination ofja supporting table, a

spring-pressed hide-clamping member extending across said table andcooperating therewith to secure the hide thereto, acarriag'e 130 mounted above the table, a pressing-and stretching roller 'journalledin said carriage,

' drive means for said rollerincluding an electrio motor mounted on said carriage, means for reciprocating said carriage, and means under the control of the operator for moving I said table relative to said clamping means and said roller. a

, 3.111 a machine of the character described, the combinationof a vertically-movabletable support, trea'dle-operated means for moving said support, a table revolubly mounted on,

said support, means for holding said table against rotary movement relative to said supfor said roller mounted on said carriage, and

means'forreciprocating said carriage.

- 4. In a machine of the character described, thecombination of a vertically-movable table-support, treadle-operated means for moving said support, a table revolubly mounted oil-said supp'ort,means for holding said table against rotary movement relative to said support, a'hide-clampingmember extending "across and above said table and cooperating therewith to secure 'a hide thereto,

- a carriage mounted above the table, a pressing-and-stretching roller journall'ed in said carriage, dr1ve means for said roller including an electric motor mounted on said.ca'r-.

riage, and means for reciprocating said'carrlage. v

, the combination with a hide-supporting table and a clamping means associated therewith, of two sets of spaced guides, a carriage having rollers mounted to run on one of each set of guides, a pressing-and-stretching roller having rollers running between each set of guides, means for rotating said pressing-andstretching roller, and means for moving said pressing-and-stretching roller along said guides.

6. In a machine of the character described, the combination with a hide-supporting table and a clamping means associated there with, oftwo sets of spaced guides, a carriage having rollers mounted to run on one of each set of guides, a pressing-and-stretching roller having rollers running between each set of guides, drive means for said pressmg-andstretching roller mounted on said carriage, a

' ower-driven shaft and means 0 erativel' connecting said shaft with said carriage for reciprocating said carriage. V a

7. In a machine of the character described, the combination with a rotating and movable pressing-and-stretching roller, of a hide supporting table, means for raising and lowering said table comprisinga support for spaced relation on opposite sides ofsaid support and operativelyconnected thereto, a pair of treadle-operated levers, and a connection between each of said treadle' operated levers and the levers or each set of the first-named levers, and means for counterbalancingthe; weight of said table and saidtable raisingand-lowering means. 1 v p i V 8. In ainachine of the character described, the combination with a'rotating andmovable pressing-and-stretching roller, of a hide-sup- 1 saidv table, two sets of leversv arranged in j porting table, means for raising and lower ing said table comprising a support for said table, two sets of levers arranged in spaced I "relation'bn opposlte sides of-saidsupport and operatively connected thereto, a pair of treadle-operated levers, and a connection betweeneach of said t'readle-operated levers and the levers of eachset of the first-named levers, and a counterweight:associatedwith said treadle-operated levers "for counterbalaneing the weight of said table and said table-ra1s1ng-and-lowermg means. 5 1 9. A machlne for pressing and stretching a hide on a setting-out-board'to set out the hide on the board in a stretched condition, com:.

prising means for supporting the setting out board in such a manner that-the setting-out board withthe hide thereon may be easily removed from-the machine for drying upon thecompletionp'f the pressing and stretching operation, means for simultaneously stretching the hide and'pressing the same against the board, and meansvfor preventing slippageof the hide during the stretching 1 and pressing operation; 5. In a machine of the character described,

-.means for preventing slippage of the hide during the stretching and pressing opera tion. v 3 f 11 Amachine 'for pressing and stretching a hide on a setting-out board to set out the hide on the board in stretched condition, comprising a supporting table for the setting out board and hide shiftable to present different portions of the hide for working, means for holdin the hide against slippage in v any position of said table, a pressing and stretching roller engageable. with the portion of the hide presented for working, means forrotating the roller, and means for causing relative feeding movement between the roller and that portion of the hide presented for working. r I

. 12. A machine for pressing and stretching a hide on a setting-out board to set out the hide on the board in a stretched condition,

7 comprising supporting means for the set- 1 a 13. A machine for pressing and stretching 'a hide on a setting-0ut boardto set out-the hideon the board in a stretchedcondition,

' comprising a supportingtable for the, board and hide, a pressing and stretching roller engageable with the :hide, means for-rotatingthe roller, means for advancing the roller relative to the surface of the hide, means for raising and lowering. the table to cause the roller to engage with and to be disengaged 'from the hide, and clamping means engage" able with the hide in the raised position of i the table and dis'engageable therefromupon the lowering of thetabler a I :14. A machine for pressing and stretching a hide on a setting-out board to set'out the hide on the board in stretched condition, comprising a shiftable table for supporting the setting-out board and hide, a pressing and stretching roller engageablewith they hide, 'means for rotating the roller, means for moving the table and roller relative to each other to bring the roller into and out of operative contact with the'hide, means for moving the table and roller relative to each other to advance the roller over the hide, and 'means for clamping the hide against slippage during the pressing and stretching operation. f

15. A machine for pressing and stretching a hide on a setting-out board to set out the hide on the board in a stretched condition, comprising a supporting table for the board and hide clamping means engageable with the hide for holding it' against slippage and for preventing displacement of the setting-out board on the table, a pressing and stretching roller engageable with the hide,

means for rotating the roller, andmeans for causing relative feeding movement between the surface of the hide and said roller.

16. A machine for pressing and stretching a hide on a setting-out board to set out the hide on the board in a stretched condition, comprising supporting meansl for the setting-out board and hide shiftable tO'dlfiI- ent working positions, hide-clamping means,

and a pressing and stretchingroller engage able with the hide andhaving meansifor stretching the hide laterally. and longitudinally. Y

17 A machine for pressing; downwand stretching ahide ona setting-outboard,

comprising stretching means, and means for supporting and holding the board and thehide against slippage while being actedupon by said stretching means,said hideand board being'releasably held by said s'upportingand holding means so as to be easily removed from themachine for-drying upon the com pletion of the stretching operation.

In testimony whereof, we afiix our signatures.

CHARLES P. VOGEL; ALBERT GQVOGEL. 

